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(parent: 41aeba4) | patch
tcp: Fix a data-race around sysctl_tcp_retrans_collapse.
authorKuniyuki Iwashima <kuniyu@amazon.com>
Mon, 18 Jul 2022 17:26:49 +0000 (10:26 -0700)
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Fri, 29 Jul 2022 15:25:23 +0000 (17:25 +0200)
commit1a1aedbb7605314f4210174988fde8c99c25bb07
treeb642b6de04bb149a3ccb5a48b52c772e001b4c3dtree | snapshot
parent41aeba4506f6b70ec7500c6fe202731a4ba29fe5commit | diff
tcp: Fix a data-race around sysctl_tcp_retrans_collapse.

[ Upstream commit 1a63cb91f0c2fcdeced6d6edee8d1d886583d139 ]

While reading sysctl_tcp_retrans_collapse, it can be changed
concurrently.  Thus, we need to add READ_ONCE() to its reader.

Fixes: 1da177e4c3f4 ("Linux-2.6.12-rc2")
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
net/ipv4/tcp_output.c diff | blob | history
Domain: System / Kernel;